Submitted on: 07 January 2013.
Revised on: 29 January 2013.
Accepted on: 29 March 2013.
___________________EVOLUTION---OXFORD UNIV PRESS
Submitted on: 16 June 2000.
Revised on: 24 August 2000.
Accepted on: 12 October 2000.
___________________EVOLUTION---OXFORD UNIV PRESS
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Submitted on: 04 March 2017.
Revised on: 12 May 2017.
Accepted on: 27 June 2017.
___________________EVOLUTION---OXFORD UNIV PRESS
http://reply.papertrans.cn/1/95/9441/9441-35.png
http://reply.papertrans.cn/1/95/9441/9441-36.png